/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.db.mpp.execution.schedule.queue;

public class QueueElement implements IDIndexedAccessible {
    private QueueElementID id;
    private final int value;

    public QueueElement(QueueElementID id, int value) {
        this.id = id;
        this.value = value;
    }

    public int getValue() {
        return this.value;
    }

    @Override
    public ID getId() {
        return id;
    }

    @Override
    public void setId(ID id) {
        this.id = (QueueElementID) id;
    }

    @Override
    public int hashCode() {
        return id.hashCode();
    }

    @Override
    public boolean equals(Object o) {
        return o instanceof QueueElement && ((QueueElement) o).getId().equals(this.id);
    }

    public static class QueueElementID implements ID {
        private final int id;

        public QueueElementID(int id) {
            this.id = id;
        }

        public int getId() {
            return this.id;
        }

        @Override
        public int hashCode() {
            return Integer.hashCode(id);
        }

        @Override
        public String toString() {
            return String.valueOf(id);
        }

        @Override
        public boolean equals(Object o) {
            return o instanceof QueueElementID && ((QueueElementID) o).getId() == this.id;
        }
    }
}
